/Engine/Plugins/Runtime/XRBase/Source/XRBase/Public/HeadMountedDisplayFunctionLibrary.h
Get the bounds of the area where the user can freely move while remaining tracked centered around the specified origin
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Input|XRTracking") static FVector2D GetPlayAreaBounds ( [TEnumAsByte](API\Runtime\Core\Containers\TEnumAsByte)< [EHMDTrackingOrigin::Type](API\Runtime\HeadMountedDisplay\EHMDTrackingOrigin__Type) > Origin )